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Author Question: A linear regression line is assumed to . a. curve slightly upward sat the highest value of X b. ... (Read 129 times)

mspears3

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on: Jun 20, 2018
A linear regression line is assumed to .
 
  a. curve slightly upward sat the highest value of X
   b. be a straight line relation throughout the range of X values
  c. curve slightly downward sat the lowest value of X
  d. assume a negative slope near zero if the correlation coefficient is negative

Question 2

If rfor variables X and Y = zero, then the _____ .
 
  a. best prediction of Y is the mean of Y
  b. regression equation will predict Y exactly
  c. mean of X will be higher than the mean of Y
  d. Y-intercept is equal to 1.0


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JaynaD87

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Reply #1 on: Jun 20, 2018
Answer to Question 1

B

Answer to Question 2

A


mspears3

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Reply #2 on: Jun 20, 2018
Thank you!


JaynaD87

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Reply #3 on: Jun 20, 2018
Happy to help


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